I've found docs teaching on how to implement Twilio on server-side using Node, however, I couldn't find an end-end example where I can send a SMS coming from my client app.
Can anyone tell me what the implementation would look like to send a post custom SMS from client to server?
Disclaimer my server file is named as app.js and my client file is named as index.js
**1- This is what I have currently setup on my app.js
const express = require('express');
const app = express();
const path = require('path');
const twilio = require('twilio');
const bodyParser = require('body-parser');
//JSON DATA
const guests= require('./public/data/Guests');
app.use(bodyParser.urlencoded({extended: false}));
app.use(express.static('public'));
//SET PORT
app.set("port", process.env.PORT || 3000);
//GET JSON DATA
app.get('/data', function(req, res) {
Promise.all([guests])//combine requests into one object
.then(([guests]) => {
res.send({guests});
});
});
//CATCHALL
app.get("/*", function(req,res){
let file = req.params[0] || "/views/index.html";
res.sendFile(path.join(__dirname, "/public/", file));
});
//LISTEN ON PORT
app.listen(app.get("port"), function(){
console.log("Listening on port: " , app.get("port"));
});
let client = new twilio('xxxxxxxxxx', 'xxxxxxxxxxxxx');
app.post('/sms', (request, result) => {
const message = request.body.message;
client.messages.create({
to: +1847820802492359,
from: +8475302725792530 ,
body: message
}).then(() => {
// message sent successfully, redirect to the home page.
res.redirect('/');
}).catch((err) => {
console.error(err);
res.sendStatus(400);
});
});
-2 am trying to process a dynamic message in my index.js. The code works on the DOM properly, it is just the SMS with Twilio that isn't posting the message to the server
$(function() {
$.ajax({
type: "GET",
url: "/data",
success: res => {
//console.log(res);
handleMessage(res);
},
error: err => console.log(err)
});
//message method
let handleMessage = (res) => {
const getFirstName = res.guests.map(name => name.firstName);
//populate drop-down select
let handleSelect = () => {
//adds first names to select dropDown
$.each(getFirstName, function(i, value) {
$('#selectName').append($('<option>').text(value).attr('value', value));
});
};
handleSelect();
let handleSubmit = () => {
$("#form").submit(function(e) {
e.preventDefault();
let name = $('#selectName').val();
let greetGuest = `Welcome ${name}!`;
console.log(greetGuest);
//append to Dom
$('.showMessage').append(`<div class="newMessage"><span>${greetGuest}</span></div>`);
});
};
handleSubmit()
};
});
-3 HTML form
<form id="form" action="/sms" method="POST">
<label>
<label for=selectName>Guest
<select id="selectName" class="select " name="sms">
</select>
</label>
</label>
<input type="submit" value="send" class="btn btn-success" />
</form>
Am I having an asynchronicity issue here?
Twilio developer evangelist here.
I can give you a basic example here, which should give you a good idea of how to achieve this. I'll start with the server side, which you already have the basics of.
Firstly, I would recommend you use a POST request rather than a GET, simply because GETs can be easily repeated by users or cached by proxies. I assume you are using Express as the web application server. You will also need the body-parser module to read the data that we send from the client side.
const Twilio = require('twilio');
const express = require('express');
const bodyParser = require('body-parser');
const app = new express();
app.use(bodyParser.urlencoded({extended: false}));
app.use(express.static('public'));
const twilio = new Twilio(YOUR_ACCOUNT_SID, YOUR_AUTH_TOKEN);
app.post('/messages', (request, result) => {
const message = request.body.message;
twilio.messages.create({
to: TO_NUMBER,
from: FROM_NUMBER,
body: message
}).then(() => {
// message sent successfully, redirect to the home page.
res.redirect('/');
}).catch((err) => {
console.error(err);
res.sendStatus(400);
});
});
app.listen(3000);
This sets up a server which is serving static files from a public directory and then has one endpoint, POST to /messages, that sends a message.
We now need to create the client side. I shall do this in HTML only for simplicity. You need a form that will POST to the /messages endpoint with, in this case, a single field for the message. I've included a textarea to write the message in and a button to submit the form. If you save this as index.html in the public directory where you run the application from then it should work.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Send a message!</title>
</head>
<body>
<h1>Send a message!</h1>
<form action="/messages" method="POST">
<label for="message">What would you like to send?</label>
<textarea name="message" id="message"></textarea>
<button type="submit">Send!</button>
</form>
</body>
</html>
Let me know if that helps at all.
Update
So you're looking to make the request to the server using Ajax so your page doesn't reload and you can display a different message. Your current form seems to have removed the message textarea that I added, I'll put it back in again. I assume you also want to send the message to whichever guest you are welcoming at the time, but I don't know how that works in your system, so I'm going to avoid that for now and hopefully you can sort it out.
So, if you update your form to something like this:
<form id="form" action="/sms" method="POST">
<label>
<label for=selectName>Guest
<select id="selectName" class="select " name="sms">
</select>
</label>
</label>
<label for="message">Message</label>
<textarea id="message" name="message"></textarea>
<input type="submit" value="send" class="btn btn-success" />
</form>
Then you need to add to your JavaScript a way to actually submit the form (since you are preventing the submission with e.preventDefault().
const $form = $('#form');
$form.submit(function(e) {
e.preventDefault();
let name = $('#selectName').val();
let greetGuest = `Welcome ${name}!`;
console.log(greetGuest);
$.ajax({
url: $form.attr('action'),
type: $form.attr('method'),
data: $form.serialize(),
success: function(data) {
console.log("The message has been sent");
},
error: function() {
console.error("The message couldn't be sent");
console.error(...arguments);
}
})
//append to Dom
$('.showMessage').append(
`<div class="newMessage"><span>${greetGuest}</span></div>`
);
});
In this case we are hooking into the callback for the submit event to make a new $.ajax request to the form's action, using the method (POST), and including the form data (which we get from $form.serialize()). We then setup success and error callbacks as you've done at the top of the function.
Let me know if this helps.
Related
I am trying to make a basic login system using Express, where if the user's username and password are correct according to a MySQL database, it adds a short "Success!" or "Failure" message to the bottom of the page when it receives a POST request.
I've tried using res.write("<p>Success!</p>") and res.send("<p>Success!</p>"), but neither have worked - instead they just create a new page with "Success!".
HTML:
<html>
<head>
<meta charset="utf-8">
<title>Login</title>
</head>
<body>
<h1>Login</h1>
<form id="contact-form" method="POST" action="/login">
<label for="Username">Username: </label>
<input name="Username" maxlength="45"><br><br>
<label for="Password">Password: </label>
<input name="Password" type="password" maxlength="45"><br><br>
<input type="submit" value="Submit">
</form>
</body>
</html>
JS:
const port = 3000;
const express = require("express");
const mysql = require("mysql2");
const app = express();
const bodyParser = require("body-parser");
var conn = mysql.createConnection({
host: "localhost",
database: "database",
user: "<Username>",
password: "<Password>"
});
conn.connect((err) => {
if(err) throw err;
console.log("Connected to database.");
})
app.use(express.static(__dirname + "/public"));
app.use(bodyParser.urlencoded({
extended: false
}));
app.get("/login", (req, res) => {
res.sendFile(__dirname + "/Login.html");
});
app.post("/login", (req,res) => {
let form = req.body;
let sqlQuery = "SELECT * FROM logins WHERE Username = '" + form.Username + "' AND Password = '" + form.Password + "';";
conn.query(sqlQuery, (err, result, fields) => {
if(err) throw err;
if(result.length == 1) {
res.write("<p>Success!</p>")
} else {
res.write("<p>Failure.</p>")
}
})
});
app.listen(port);
So, how could I append a short p element / text to the bottom of an HTML file?
Okay,
So when the submit button in the login form is hit, it creates a totally new request and the old page is no longer in the context of request.
So, res.write() creates a new page, since a new request is generated.
If you want to append the failure and success messages on the same page, you can use ajax request instead of default form submission.
Send the ajax request, you will receive the response without a page reload, and then upon receiving the response, using javascript, you can append a new element with message from the server
const contactForm = document.getElementById('contact-form');
contactForm.addEventListener('submit',(e)=>{
e.preventDefault();
const username = contactForm.elements['username'].value;
const password = contactForm.elements['password'].value;
// now make the ajax call, you can use any library like FetchAPI, axios or even jQuery Ajax
fetch('http://backend/endpoint',{
method: 'POST',
body: JSON.stringify({username,password})
})
.then((res)=>{
return res.json();
})
.then((data)=>{
console.log(data)
// you can append new element here
// based on data (success or failure)
})
})
I'm making a MERN application. I'm fairly new to it, so I'm trying to make everything based on what I know without looking much stuff up, because if I follow tutorials too much I don't remember stuff. Anyway, I've got a component that sends the registration information to the database and everything there is okay. Now I'm trying to check the login.
When I make the "GET" request to a route that I named "/check", nothing happens. If I change it to a "POST" request, things work. Shouldn't it be a "GET" request though since I'm trying to get information from the database?
The Node file:
const express = require('express');
const mongoose = require('mongoose');
const path = require('path');
const bcrypt = require('bcrypt');
const application = express();
application.use(express.json());
application.use(express.urlencoded({ extended: true }));
const port = process.env.PORT || 8080;
mongoose.connect(process.env.PASSWORD)
.then(console.log('Database connected'))
.catch(error => console.log(error));
const db = mongoose.connection;
application.get('/', (request, response) => {
response.send('Hello World');
});
application.post('/post', (request, response) => {
db.collection('data').insertOne({
name: request.body.username,
password: bcrypt.hashSync(request.body.password, 10),
}).then(console.log('Submission done'));
console.log('POST made');
response.redirect('/');
});
application.get('/check', (request, response) => {
db.collection('data').findOne({
name: request.body.username,
password: bcrypt.compareSync(
request.body.password,
bcrypt.hashSync(request.body.password, 10)
),
});
console.log('The request went through');
response.redirect('/');
});
application.listen(port, () => {
console.log('Listening here...');
});
The React file:
import React from 'react';
export const Login = () => {
return (
<>
<h1 className="text-center">Login</h1>
<div className="row">
<div className="col"></div>
<div className="col text-center">
<form action="/check" method="GET">
<label for="username" name="username">Username: </label>
<input name="username" className="h4" />
<label for="password" name="password">Password: </label>
<input type="password" name="password" className="h4" />
<button>Submit</button>
</form>
</div>
<div className="col"></div>
</div>
</>
);
};
There is difference between the "GET" and "POST" of HTML form element and "GET" and "POST" of node.js .
From Node.js perspective, you can save/send data to database with both POST and GET. However, the situtation is different for form element.
If you use "GET" on the form element, then form will submit all input data to the URL. And on the node.js side, you will need to use req.query to get data on the url, not req.body
So, in your code, you are using "GET" for the Form element but on the node.js file, you are using req.body. This shouldn't work.
Even if you make it work with req.query, the situation will still be totally unsafe, as you openly showing the passwords on the URL.
For more info, on html form attributes, this link can be useful. https://www.w3schools.com/html/html_forms_attributes.asp
you are sending username and password to the server so you should to use POST method
I was trying to use the Fetch API POST method in Vanilla JS. The endpoint was located in Node-JS code.
The POST method function run whenever ONKEYDOWN function runs on html text input. Whenever we type on keyboard, it sends data to the Node-JS Endpoint and then prints it. Each time I typed, the data was being sent but was only received only 6 times before it stopped printing the req.body.
Here's is my code for HTML + Vanilla JS (index.html).
<div onkeydown="post()">
First Name
<input type="text" name="FirstName" id="FirstName">
<br> <br>
Middle Name
<input type="text" name="MiddleName" id="MiddleName">
<br> <br>
Last Name
<input type="text" name="LastName" id="LastName">
</div>
<script>
function post() {
const formData = {
FirstName: document.getElementById('FirstName').value,
MiddleName: document.getElementById('MiddleName').value,
LastName: document.getElementById('LastName').value,
}
localStorage.setItem("FirstName", formData.FirstName)
localStorage.setItem("MiddleName", formData.MiddleName)
localStorage.setItem("LastName", formData.LastName)
console.log(formData);
fetch('/', {
method: 'post',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify(formData)
})
}
</script>
Here's is my Code for Node-js (index.js)
const express = require('express')
const app = express()
app.use(express.json({ limit: '20mb'}))
app.use(express.static('/')) //static folder
app.listen(80, () => {
console.log('THE PORT IS UP AND RUNNING')
})
app.get('/', (req, res) => {
res.sendFile('index.html', { root: __dirname })
})
let i = 0; // to display the number of outputs
app.post('/', (req, res) => {
console.log(req.body, i++)
// print the data
})
According to this code, I recieve the req.body only for 6 times which is printed in the terminal (6 times). Please help
You need to send response to previous requests.
The easiest way to achieve it is to call .end() method of the res object
// print the data
res.end();
Your requests don't hit the server due to browser's concurrent requests limit which is 6 for some browsers including Google Chrome. Browser waits for pending requests to finish before sending next ones, but your server never sends response.
So, I am using Node.js with express to run a server and make a calculator. After that, I downloaded body-parser, to get the access of the numbers the user inputs and use it to calculate the result, but for some reason whenever I try to log one of the numbers on console, just to make sure that it works, it doesn't get logged.
const express = require('express');
const bodyParser = require('body-parser');
const app = express();
app.use(bodyParser.urlencoded({extended: true}));
app.get('/', (req, res) => {
res.sendFile(`${__dirname}/index.html`);
})
app.post('/', (req, res) => {
console.log(req.body);
res.send('Thanks for the information');
})
app.listen(3000, () => console.log('Server Started'));
Your form will look something like this
<form id="post-form" action="/your/post/url" method="POST">
<div class="form-control">
<label for="title">Number</label>
<input type="number" name="number" id="number">
</div>
<button type="submit">
Submit
</button>
</form>
Or in your script tag, you can do something like this.
with this approach, the form gets submitted without reload
// Note: Optional approach (without reloading the page)
// Just above HTML only code also works perfectly fine
<script src="https://unpkg.com/axios/dist/axios.min.js"></script>
<script>
const number= document.getElementById('number')
document.getElementById('post-form').addEventListener('submit', (e) => {
e.preventDefault();
axios
.post('/your/post/url', { number: number.value })
.then((res) => {
//handle response here
})
.catch((err) => { //handle err here});
});
<script>
then in you express app you can do
app.post('/you/post/url/', (req,res,next) => {
// this is how you accces title from you form
// here title will hold value "Value Here"
const { number} = req.body
//calculate here
number = number * number + number
// then send the response
res.send(`calculated number: ${number}`)
});
I have made basic web apps whereby data is sent via HTTP parameters. However, I am trying to send data from client-side that contains an array (a list of ingredients for a recipe) and eventually, hopefully user uploaded image (but not worried about that for now). For this I know I need to use AJAX. I have spent hours trying to get it to work but for some reason, no POST request is being sent. The user inputs are fairly basic but here's a snippet:
<label for="method"> Method </label>
<textarea id="method" name="method">method here</textarea>
</br>
<p> add ingredients </p>
<input name="ingredient" id="ingredient" placeholder="add ingredient">
<input name="quantity" id="quantity" placeholder="#"><button id="addIngBtn" type="button">Add</button><br>
<button type="submit">submit</button>
<p> Ingredients:</p>
<ul id="ingredientListUL">
I use JQUERY to allow users to append as many ingredients as they want to the list:
$(document).ready(() => {
$("#addIngBtn").click(() => {
let ingredient = $("#ingredient").val();
let quantity = $("#quantity").val();
$("#ingredient").val(""); //reset ingredient input
$("#quantity").val("");
$("ul").append(
"<li>" + ingredient + " - " + quantity + "</li>"
);
});
})
Ingredients are built into an array and then added to a new recipe object which is the data I want to send to my server:
var ingredients = [];
$("#ingredientListUL li").each((index, element) =>
ingredients.push($(element).text())
)
var recipe = {
name: $("#name").val(),
image: $("#image").val(),
oneLiner: $("#oneLiner").val(),
method: $("#method").val(),
ingredients: ingredients
}
So far so good. I presume I am doing something wrong with these next parts. Here's the AJAX post request:
$.ajax({
url: "http://localhost:5000/recipes",
type: "POST",
dataType: "json",
data: recipe,
contentType: "application/json",
complete: function () {
console.log("process complete");
},
success: function (data) {
console.log(data);
console.log("process success");
},
error: function () {
console.log(err);
}
})
And here's my server info:
// express setup
const express = require("express");
const app = express();
const port = 5000;
// set templating engine to EJS
app.set('view engine', 'ejs');
// import route files
const recipeRoutes = require("./routes/recipes")
app.use("/recipes", recipeRoutes);
// body parser
const bodyParser = require("body-parser");
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json())
//--
// BASIC ROUTES
//--
app.get("/", (req, res) => res.render("landing"));
// Port
app.listen(port, () => console.log(`Server starting on port ${port}!`));
All routes, are stored in a recipe routes file, which contains the post route for this request:
// default "/" route is really "/recipes" as defined in main server file.
router.post("/", (req, res) => {
console.log(req.body.recipe);
})
The problem is that nothing appears to be sent to, or received by my server according to network tab. Even when I try to send something like:
$.post("http://localhost:5000/recipes", { test: "test" })
What am I doing wrong? Thanks.
The contentType property does not work that way. It indicates if it is URL encoded, as a multipart message, etc. Try removing it.
According to: https://api.jquery.com/jquery.ajax/ :
"If you explicitly pass in a content-type to $.ajax(), then it is
always sent to the server (even if no data is sent)"